Vending pump



Sept. 15, 1931. 5 1,823,379

VENDING PUMP Filed June 4. 1928 2 Sheets-Sheet l I I I: llll ATTORNEY Sept. 15, 1931. E, sc T 1,823,379

VENDING PUMP Filed June 4, 1928 2 Sheets-Sheet 2 ATTORNEV UNITED STATES PATENTE OFFICE EDWARD T. SCHMIDT, OF BLACKWELL, OKLAHOMA VENDING PUMP Application filed June 4,1928. Serial No. 282,646.

This invention relates to a gasolinevending device, the general object of the inven tion being to provide means whereby the customer can secure a certain amount of gasoline from the pump by inserting a coin in a coin device and pressing a coin carrier which acts to open a valve to permit the gasoline to flow from the visible tank into the tank of the vehicle or other container, with float operated means for closing the valve when the visible tank is empty and closing the circuit of a motor which operates a pump to refill the visible tank, the circuit being broken when the float is raised againby the gasoline flowing into the visible tank.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, il-

lustrated in the accompanying drawings and specifically pointed out in the appended claims. a

In describing my invention in detail, reference will be had; to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a sectional view through a 3 pump constructed inaccordance with this invention. v

Figure 2 is a section on line 22 of Figure 1. r

Figure 3 is a section on line 3-3 of Figure 1.

In these drawings, the numeral 1 indicates the pump housing and 2 indicates the visible tank arranged at the top of the housing, the gasoline being 2 from the underground supply tank through the pipes 3 by the pump 4 which is operated from the motor 5 through means of the chain and sprockets shown generally at 6. The overflow pipe is shownat 7 and the discharge pipe is shown at 8. A valve 9 is arranged in the pipe 8 and the part carrying the valve is arranged in a casing 10 located within the housing 1.

The movable part of the valve 9 has an armthereon (not shown) which is arranged forced into the tank,

to be engaged by a coin placed in the slide 11 so that when the slide is pushed inwardly with the coin therein, the coin will strike the arm and open the valve so thatgasoline will flow from the tank 2 through the discharge pipe. A float 12 is arranged in the tank 2 and the stem 13 of said float passes through the pipes 14. which connect the casing 10 with the bottom ofthe tank 2 and with a casing 15 arranged in the housing below the casing 10, one of the pipes 14 being connected with the bottom of the casirg 15 with its lower end closed by a cap Three collars 17, 18 and 19 are adjust ably fastened to the stem. The upper collar 17 is adapted to strike an arm 20 connected with the movable part of the valve 9 when the float nears the bottom of the tank so as to close the valve when the tank is 7 empty. The collar 18, at the same time, will strike an arm 21 fastened to a shaft 22 journaled in the casing 15, said shafthaving a second arm 23 thereon which is connected by a link 24 with a movable contact 25 arranged in a switch box 26 and in which is located a stationary contact 27 so that the contact 25 will be pushed against the contact 27 and thus close the circuit of the motor 5 through'the conductors 28 and thus start the pump into operation so that the tank 2 will be filled again. The collar 19 will strike the arm 21 when the float reaches the filled level of the tank 2 which acts to move the contact 25 away from the contact 27 and thus break the circuit of the motor.

From the foregoing it will be seen that I have provided simple means whereby a customer can wait upon himself by simply placing a coin of the proper denomination in the coin slot and pushing the slide inwardly to open the valve 9 to permit the gasoline or other fluid in the tank 2 to pass through the discharge pipe '8. The valve 9 is closed by the collar on the stem of the float when the tank 2 is empty and at the same time the switch of the motor 5 is closed so as to cause the motor to operate the pump to refill the tan 2 and as soon as the tank is full, the switch is opened to break the circuit of the motor and thus cause the pump to cease operation.

By adjusting the collars on the stem. 13 and adjusting the upper part 7 of the overflow pipe 7 the tank can be set to give the desired amount of fluid required by the coin to be placed in the coin device.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

It is to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is 1. A liquid dispensing device comprising a tank, a pump for forcing liquid into the tank, -a motor for operating the pump, a circuit for the motor, a switch in the circuit,

a shaft rotatably supported, a first arm connected with the shaft, means for connecting the arm with the movable part of the switch, a second armon the shaft, a discharge pipe connected with the bottom of the tank, a valve in said pipe, manually 0perated means for opening the valve, an arm on the valve,

of which will strike the second arm on the shaft when the float nears its upward limit of movement to rock the shaft to cause the first arm to open the switch, another collar on thestem acting to strike the arm on the discharge valve to close the valve when. the float reaches its downward limitof movement and another collar on the stem acting to strike the second arm on the shaft to close the switch as the float reaches its downward limit of movement.

2. A liquid dispensing device comprising a tank, a pump for forcing liquid into the tank, a motor for operating the pump, a circuit for the motor, a switch in the circuit, a shaft rotatably supported, a first arm connected with the shaft, means for connecting the arm with the movable part of the swltch, a second arm on the shaft, a discharge pipe connected with the bottom of the tank, a valve in said pipe, manually operated means for opening the valve, an arm on the valve, a float in the tank, a stem connected with the float, collars on the stem, one of which will strike the second arm on the shaft when the .float nears its upward limit of movement to rock the shaft to cause the first arm to open the switch, another collar on'the stem acting to strike the arm on the discharge valve to close the valve when the float reaches its downward limit of movement and another collar on the stem acting to strike the second arm on the shaft to close the switch as the float reaches its downward limit of movement, means for a float in the tank, a stem con-. nected with the float, collars on the stem, one

adjusting the collars on the stem, and an overflow pipe having an adjustable part in the tank.

3. A unit, as for vending liquids such as gasoline and the like comprising: a dispensing tank; supply means for maintainlng a predetermined supply of liquid in said tank; an outlet "duct for dispensing the liquid from said tank; a normally closed discharge valve in said outlet duct; coin controlled means for actuating said valve to cause liquid to be discharged from said tank; and means for automatically closing said discharge valve and simultaneously actuating said supply means to supply said tank.

4. A unit, as for'vending liquids such as gasoline and the like comprising: a dispensing tank; supply means for maintaining a predetermined supply of liquid in said tank an outlet duct for dispensing the liquid from said tank; a normally closed discharge valve in said outlet duct; coin controlled means for actuating said valve to cause liquid to be discharged from said tank; and float contro-lled means for automatically closing said discharge valve and simultaneously actuating said supply means to supply said tank.

5. A unit, as for vending liquids such as gasoline and the like pensing tank; supply means for maintaining a predetermined supply of liquid in said tank; an outlet duct for dispensing the liquid from said tank; a normally closed discharge valve in said outlet duct; coin controlled means for actuating said valve to cause liquid to be discharged from said tank; and float controlled means having a rod moving therewith and provided with collars thereon operable to automatically close said discharge valve and simultaneouslynaictuate said supply means to supply said ta 6. A unit, as for vending liquids such as gasoline and the like comprising: a dispensing tank; supply means, including a pump, for maintaining a predetermined supply of liquid in said tank, said means also including a motor and switch for operating said pump; an outlet duct for dispensing the liquid from said tank; a normally closed discharge valve in said outlet duct; coin controlled means for actuating said valve to cause liquid to be discharged from said tank; and means for automatically closing said discharge valve and simultaneously actuating said switch and said motor to drive said pump and supply said tank.

A unit, as for vending liquids such as gasoline and the like comprising: a dispensing tank; supply means, including a pump, for maintaining a predetermined supply of liquid in said tank, said means also including a motor and switch for operating said pump; an outlet duct for dispensing the comprising: a disiiquid from said tank; a normally closed discharge valve in said outlet duct; coin controlled means for actuating said valve to cause liquid to be discharged from said tank; and float controlled means for automatically closing said discharge valve and simultaneously actuating said switch and said motor to drive said pump to supply said tank.

' 8. A unit, as for vending liquids such as gasoline and the like comprising: a dispensing tank; supply means, including a pump, for maintaining a predetermined supply of liquid in said tank, said means also including a motor and switch for operating said pump; an outlet duct, for dispensing the liquid from said tank; a normally closed discharge valve in said outlet duct; coin controlled means for actuating said valve to cause liquid to be discharged from said tank; and float controlled means having a rod moving therewith and provided with collars thereon operable to automatically close said discharge valve and simultaneously actuate'said switch to effect movement of said motor and pump to supply said tank.

In testimony whereof I afiix my signature.

EDWARD T. SCHMIDT. 

